Designed to withstand the daily use by a proffesional scaffolder,
the box is fully machined to remove any material surface defects
that would cause a weakness in service.
Heat treatment of the box is controlled to provide the correct
balance of hardness tp prevent the premature wear but to retain
some ducility to prevent the box splitting.
The traditional rivet has been replaced with a high tensile steel
bolt providing maximum strength.
The profiled handle is not onlt comfortable in use but also prevents
the spanner slipping throug the hand.